Unauthorized Transaction With Pdfe.com

I am a Mandiri customer in Indonesia and I use a Livin’ by Mandiri debit card. On 23 February, I discovered an unauthorized transaction on my debit card for Pdfe.com subscription service that I did not approve. There was only one transaction, but the amount was significant for me, totalling 978,665 rupiah. I immediately contacted Mandiri customer service about this unauthorized subscription payment. However, I was told that I should dispute the transaction with the platform instead of receiving direct support and protection from the bank for this case. I do not accept being held responsible for a transaction that I did not authorize and that should have been blocked or at least investigated more thoroughly as a potential fraud or misuse. In this context, I request that Pdfe.com investigates this incident as an unauthorized transaction and provides a full refund of the 978,665 rupiah that was taken from my account without my consent. I also expect clear information on how this transaction was able to go through and what measures will be taken to prevent similar incidents in the future.